ZyXEL Communications PLA-470 V2 - V3.0.5 Guía de instalación descargar pdf (Pagina 307)

(France), with the support of the Tiscali Internet access provider for the Internet con-

nection.

This distribution network was intended to test the quality of an Internet access

over the EDF low voltage distribution network in a dense urban environment (star

electrical network topology of the tree type).

The architecture of this infrastructure consisted of a very high throughput

Internet access with an optical fiber at the local electrical substation that supplied

between 100 and 200 EDF subscribers.

At the electrical substation, the PLC devices were used for injecting the PLC sig-

nal in the electrical wirings starting from the transformer and serving the apartments

of the various local buildings. These electrical substation PLC devices were masters.

The slave PLC devices connected to the PLC network were located in the apart-

ments. They had the suitable logical authorizations to recover the Internet signal

originating from the Tiscali Internet access provider. This Internet access provider

managed the users’ authentications and the assignment of IP addresses to each cus-

tomer of the PLC distribution network.

Medium-Scale PLC Networks

Within the framework of the digital gap reduction policy concerning high through-

put Internet access in a rural environment, the Seine-et-Marne regional council

(France) has deployed satellite, PLC, and Wi-Fi network technologies in the com

munes of Villeneuve-Saint-Denis and Villeneuve-le-Comte.

288 PLC for Communities

Figure 12.14 PLC device configuration architecture for GPS positioning of the distribution

network devices

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ZyXEL Communications PLA-470 V2 - V3.0.5 Guía de instalación Pagina 307